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U. S. PROPOSALS FOR MADRID PARLEY
Following several conferences of sub-committees composed of both governmental and commercial radio technicians, a long list of proposals for revision of the International Radiotelegraph Con¬ vention of 1927 has been prepared and will be passed upon by the United States General Committee on March 11th for submission to the International Radio Conference at Madrid in 1932,
These proposals will be exchanged with those of other countries participating in the conference in an effort to reach a more or less general agreement before the actual parley, which has been scheduled for September, according to announcement by the State Department.
Not only has the growth of broadcasting stations been tremendous since the 1927 conference, but new demands, some unfore¬ seen, have arisen in the radio field since the Washington conference.
One of the most important of these is television. The United States engineers, however, have assumed the attitude that visual broadcasting is a local problem, viz. , that the North Ameri¬ can countries, for instance, can reach an agreement among themselves as to what channels assigned to them shall be used for television.
An entirely new service that must be cared for in the new distribution of radio channels is ship-to-shore radiotelephone, which has been developed since the Washington meeting.
European countries are preparing to insist on more channels for broadcasting b-ecause of their language problem. While they have the same broadcasting band as the United States and an additional band of from 160 to 224 kilocycles, they have not enough cleared channels to go around.;
What they are expected to fight for at the Madrid Confer¬ ence is at least one cleared channel for each country for every general language spoken in it. In some countries as many as three and four languages are freely used.
Significant developments in the aeronautical radio field and in maritime communication will also have to be taken into con¬ sideration at the 1932 convention. Much pressure will be brought to bear by these interests for additional frequencies.
As there are only a limited number of channels to be dis¬ tributed among the numerous services, wherever one classification is increased, another will have to be proportionally decreased. One of the classes that will, in all probability, be reducedj will be the amateur bands.
The amateur frequencies have already been cut into by commercial communication companies, for it was the "ham operators" who discovered the worth of short waves,
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